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Refractory Technology MCQ Questions & Answers | Chemical Engineering

Learn Refractory Technology MCQ questions & answers are available for a Chemical Engineering students to clear GATE exams, various technical interview, competitive examination, and another entrance exam. Refractory Technology MCQ question is the important chapter for a Chemical Engineering and GATE students. Page-7 section-1

Each section contains 100 MCQs on Refractory Technology .
61
An ideal refractory should have high
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Answer: Option B
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62
Which is the stable form of silica between 1470°C and the melting point 1713°C ?
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Answer: Option A
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63
Furnace atmosphere for softening temperature determination of refractories (in which segar cones are placed) should be
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Answer: Option C
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64
Porosity of silica bricks varies from __________ percent.
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Answer: Option B
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65
Maximum alumina content in high alumina refractory can be as high as __________ percent.
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Answer: Option D
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66
Maximum water percentage in refractory mix meant for hand moulding may be as high as __________ percent.
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Answer: Option D
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67
Pure bauxite is the best raw material for the manufacture of high alumina refractories, in which maximum alumina content can be as high as __________ percent.
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Answer: Option D
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68
Maximum shrinkage in volume occurring during burning/firing of dried refractories may be as high as __________ percent.
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Answer: Option D
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69
Periclase refractory contains mainly
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Answer: Option B
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70
In panel test for spalling resistance, the average face temperature of panel assembly is maintained at __________ °C for 24 hours.
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Answer: Option C
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